154235-77-5
benzo[d]oxazole-6-carboxylic acid
CAS: 154235-77-5
Molecular Formula: C8H5NO3
154235-77-5 - Names and Identifiers
| Name | benzo[d]oxazole-6-carboxylic acid |
| Synonyms | 6-Benzoxazolecarboxylic acid Benzoxazole-6-carboxylic Acid benzo[d]oxazole-6-carboxylic acid 1,3-Benzoxazole-6-carboxylic acid |
| CAS | 154235-77-5 |
154235-77-5 - Physico-chemical Properties
| Molecular Formula | C8H5NO3 |
| Molar Mass | 163.13 |
| Density | 1.455±0.06 g/cm3(Predicted) |
| Melting Point | 280-290 °C (sublm)(Press: 16 Torr) |
| Boling Point | 350.1±15.0 °C(Predicted) |
| pKa | 3.60±0.30(Predicted) |
| Storage Condition | 2-8°C |
154235-77-5 - Reference Information
| Introduction | 1, 3-benzoxazol-6-carboxylic acid is an organic intermediate, It can be prepared by the reaction of 4-amino-3-hydroxybenzoic acid and trimethyl orthoformate. |
| preparation method | the mixture of 4-amino-3-hydroxybenzoic acid (250mg,1.63mmol) and trimethyl orthoformate (500 μL, 4.57mmol) was heated in an oil bath at 100 ℃ for 2 hours. The mixture was cooled to room temperature and diluted with MeOH, and the resulting solution was filtered through the sirite diatomite filler, and the filtrate was vacuum concentrated to obtain 1, 3-benzoxazol-6-carboxylic acid brown solid (2337 mg,89%):1H NMR(DMSO-d6)δ13.2,8.9,8.3,8.0,7.9. |
Last Update：2024-04-09 21:21:28
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